Company Overview Visit premcor.com website
Premcor Company is in the petroleum refining business. The company started out in Oil City, Pennsylvania with one refinery in 1914, but by 2012 it had expanded to ten refineries all over the US.
The fundamental purpose of Premcor is to refine crude oil into gasoline, jet fuel and other products for general consumption around the world.
Premcor has grown significantly over the past several years. It has acquired six new plants since 2004, including two refineries from Valero Energy Corporation in 2010 that are responsible for producing approximately 479 thousand barrels of refined fuels daily.